ok, witht he exe's there really isnt a way to tell them apart, as for whole clients, well most servers have their own setup when it comes to item and monster indexes, so you would have to be familiar with them in order to tell them apart.
just try to use the ones you know arent the same exe, the dshop tab exe, should just slip right into your client assuming your dshop files are set up correctly that is, i havent downloaded conqs exe, so i dunno if it comes with dshop files or what, but most exe's will simply drop into you bin folder and start, at least ones that havent been modified by an owner or dev from another server, i dont think any exe's u will find here on these forums are modified to that extent, so u should be able to just drop it in and start it.
i wish more noobs were like you :P
just try to use the ones you know arent the same exe, the dshop tab exe, should just slip right into your client assuming your dshop files are set up correctly that is, i havent downloaded conqs exe, so i dunno if it comes with dshop files or what, but most exe's will simply drop into you bin folder and start, at least ones that havent been modified by an owner or dev from another server, i dont think any exe's u will find here on these forums are modified to that extent, so u should be able to just drop it in and start it.
i wish more noobs were like you :P